Yanqun Yang , Yue Chen , Said M. Easa , Ming Chen , Xinyi Zheng
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The dependent variables were SA, eye movement, and driving behavior. Each participant completed a driving simulation experiment with the two driving tasks, totaling eight scenes. The SA scores were measured using the Situation Awareness Global Assessment Technique (SAGAT). The driving behavior and eye movement were collected during the experimental data analysis segment, and the sensitivity indicators for evaluating drivers’ SA were determined by calculating the correlation with the SAGAT scores. This paper focuses on applying variable message signs (VMS) to speed limits in freeway exit areas from the driver’s perspective to enhance driving safety. The findings showed that drivers have better SA in scenes with VMS, and experienced drivers have better SA than inexperienced drivers in the same scene. 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引用次数: 0
摘要
高速公路出口区域的行车环境十分复杂,安装相关的指示牌可以提高出口区域环境的安全性和顺畅性。本研究调查了两类驾驶员在高速公路出口区域使用不同标志时的情境意识(SA)得分,以及驾驶员的眼动、驾驶行为和SA得分之间的相关性。驾驶任务分为两种情况:继续行驶在主线上和进入出口匝道。自变量包括场景类型(静态限速标志、静态限速标志加可变信息标志、可变限速标志、可变限速标志加可变信息标志)和参与者类型(经验丰富的参与者和经验不足的参与者)。因变量为SA、眼动和驾驶行为。每位受试者都完成了两个驾驶任务共八个场景的模拟驾驶实验。SA分数使用情境意识总体评估技术(SAGAT)进行测量。在实验数据分析过程中收集了驾驶行为和眼动情况,并通过计算与 SAGAT 分数的相关性确定了评估驾驶员 SA 的灵敏度指标。本文主要从驾驶员的角度出发,对高速公路出口区域的限速应用可变信息标志(VMS),以提高驾驶安全性。研究结果表明,在有 VMS 的场景中,驾驶员的 SA 值更高,在同一场景中,有经验的驾驶员比无经验的驾驶员的 SA 值更高。VMS 会影响车速控制,而眼动是一个敏感的 SA 指标。
Impact of variable message signs on drivers’ situation awareness in freeway exit areas
The driving environment in the freeway exit areas is complex, and the installation of relevant signs can enhance the creation of a safe and smooth exit area environment. This study investigated the situation awareness (SA) scores of two types of drivers using different signs in the freeway exit areas and the correlation between drivers’ eye movement, driving behavior, and SA scores. The driving tasks were divided into two situations: continuing on the mainline and entering the exit ramp. The independent variables included scene type (static speed limit signs, static speed limit signs plus variable message signs, variable speed limit signs, variable speed limit signs plus variable message signs), and participant type (experienced and inexperienced participants). The dependent variables were SA, eye movement, and driving behavior. Each participant completed a driving simulation experiment with the two driving tasks, totaling eight scenes. The SA scores were measured using the Situation Awareness Global Assessment Technique (SAGAT). The driving behavior and eye movement were collected during the experimental data analysis segment, and the sensitivity indicators for evaluating drivers’ SA were determined by calculating the correlation with the SAGAT scores. This paper focuses on applying variable message signs (VMS) to speed limits in freeway exit areas from the driver’s perspective to enhance driving safety. The findings showed that drivers have better SA in scenes with VMS, and experienced drivers have better SA than inexperienced drivers in the same scene. The VMS affects speed control, and eye movement is a sensitive SA indicator.
期刊介绍:
Transportation Research Part F: Traffic Psychology and Behaviour focuses on the behavioural and psychological aspects of traffic and transport. The aim of the journal is to enhance theory development, improve the quality of empirical studies and to stimulate the application of research findings in practice. TRF provides a focus and a means of communication for the considerable amount of research activities that are now being carried out in this field. The journal provides a forum for transportation researchers, psychologists, ergonomists, engineers and policy-makers with an interest in traffic and transport psychology.